retinoscopia

Retinoscopy is an ophthalmic procedure used to determine the refractive error of the eye, which is the ability of the eye to focus light onto the retina. This procedure is essential for diagnosing and correcting refractive errors such as myopia (nearsightedness), hyperopia (farsightedness), and astigmatism. The process involves using a retinoscope, an instrument that projects a series of concentric rings of light onto the retina. The patient is asked to focus on the rings, and the examiner adjusts the lens of the retinoscope until the rings appear sharp and clear. The position of the lens at this point indicates the refractive error of the eye. Retinoscopy is a quick and non-invasive method for determining the refractive state of the eye and is often used in conjunction with other diagnostic tools to provide a comprehensive assessment of visual function. It is particularly useful in pediatric and geriatric populations, as well as in patients with certain medical conditions that may affect vision.